Journal
MATERIALS LETTERS
Volume 167, Issue -, Pages 118-121Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.12.155
Keywords
Chemical vapor deposition; Carbon nanotubes; Metal matrix composites; Interface; Hybrid reinforcements
Funding
- National Natural Science Foundation of China [51471106, 51501111]
- National Basic Research Program (973 Program) [2012CB619600]
- National High-Tech R&D Program (863 Program) [2013AA031201]
- Foundation of Shanghai Science and Technology Committee of China [14DZ2261200]
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In order to achieve a uniform distribution of carbon nanotube (CNT) reinforcement in aluminum (Al) matrix, novel nano/micro-sized hybrid reinforcements with CNT growing on the surface of SiC particle (SiCp) was synthesized by a chemical vapor deposition method. Subsequently, the hybrid reinforcement (defined as SiCp(CNT)) was mixed in the pure Al matrix by merely blending powder, as a result, CNT was well-dispersed in the matrix with the help of micro-sized SiCp as a vehicle. With the novel reinforcement, SiCp(CNT)/Al composite exhibited both improved elastic modulus of 93 GPa (35% higher than that of Al matrix) and tensile strength of 202 MPa (74% higher than that of Al matrix), mainly because CNT was dispersed uniformly and achieved intimate interfaces with Al matrix with the help of well dispersed SiCp. (C) 2016 Elsevier B.V. All rights reserved.
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